Boston-based RememberIN Inc. has added new features and photo categories to its mobile app for iPhone and iPad that provides security for mobile storage of confidential information including photos, credit card information and passwords.

Instead of relying on PINs and passwords, RememberIN uses a combination of photos from different categories that users choose to be their password.

The new features include 60 more photos to three new photo categories. Cats, flags and music have been added to RememberIN’s roster, bringing the total number of photo categories to 12. Users can create over 13 million photo combinations to create a personalized password.

RememberIN is also beginning to develop RemeberIN SDK to enable website and mobile app login with photo-based passwords.